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# This file is part of beets.
# Copyright 2012, Adrian Sampson.
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
"""Some simple performance benchmarks for beets.
from __future__ import print_function
from beets.plugins import BeetsPlugin
from beets import ui
from beets import vfs
from beets import library
from beets.util.functemplate import Template
import cProfile
import timeit
def benchmark(lib, prof):
def _build_tree():
# Measure path generation performance with %aunique{} included.
lib.path_formats = [
Template('$albumartist/$album%aunique{}/$track $title')),
if prof:
cProfile.runctx('_build_tree()', {}, {'_build_tree': _build_tree},
interval = timeit.timeit(_build_tree, number=1)
print('With %aunique:', interval)
# And with %aunique replaceed with a "cheap" no-op function.
lib.path_formats = [
Template('$albumartist/$album%lower{}/$track $title')),
if prof:
cProfile.runctx('_build_tree()', {}, {'_build_tree': _build_tree},
interval = timeit.timeit(_build_tree, number=1)
print('Without %aunique:', interval)
class BenchmarkPlugin(BeetsPlugin):
"""A plugin for performing some simple performance benchmarks.
def commands(self):
def bench_func(lib, config, opts, args):
benchmark(lib, opts.profile)
bench_cmd = ui.Subcommand('bench', help='benchmark')
bench_cmd.parser.add_option('-p', '--profile',
action='store_true', default=False,
help='performance profiling')
bench_cmd.func = bench_func
return [bench_cmd]
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